Question

Which of the following does NOT represent a unit of viscosity?

• A. $Stoke$
• B. $$m^2/sec$$
• C. $N-m/sec$
• D. $Poise$

Answer 1

Answer:

$N-m/sec$

Viscosity is the measure of a fluid's resistance to deformation caused by friction within the fluid. There are two kinds of viscosity: Dynamic viscosity (μ) and Kinematic viscosity (v). Dynamic viscosity is measured in $Ns / m ^ 2$ or Pa - s or Poise, while kinematic viscosity is measured in $m ^ 2 / s$ or Stokes.